Diaphragm Pump Mini SelfPriming DC Electric High Pressure 18.9L 4Cavity 5.0GPM(F43103055101（12V） ) Item Type: Diaphragm Pump Material: Engineering Plastic Solid Impurity Volume ≤0.1 Particles are Not Greater Than 0.2mm Ambient Temperature: ≤50℃ Medium Temperature: 0-65℃ PH Range: 5.0-10 Traffic: 18.9L/ Minimum Discharge Lift: Approx. 38 meters / 124.7ft Suction Lift: Approx. 3 meters / 9.8ft Gallon: 5.0GPM Using Scene: Car Wash, Filling Machine, Garden Agriculture Spray, Agricultural Spray, Water Heater, Household Water Boost, Property, Yacht, Shower Boost, Green Spray Fog 1. When the water pump is working, it is necessary to ensure a steady drain of the pump to avoid the use of the pump to cause damage to the pressure switch. 2. If you have an abnormal sound of the switch, you can turn off the switch, please turn off the water pump and properly adjust the pressure. 3. The motor has a slight waterproof function, splashing to a little water is not too worried (cooking), but it is strictly forbidden to put the pump motor in the water pump to be placed in the open air use, to avoid water splashing the motor, Creating power out, leakage or motor damage 4. Inlet ports must be mounted by filtration units, and cannot inhale liquid with impurities. Otherwise, it is easy to block the water pump, which will cause pressure to reduce the flow rate, and even pumping water. 5. It is strictly forbidden e this machine in a state where the filter is not connected, the filter network density is preferably 80 mesh (impurities cause damage to the pump) 7. The pump is intermittent, and it is not 24 hours without interruption. 8. When using it for a long time, it is suspended in the middle, please disconnect the connection between the motor pump and the power supply. 9. The water pump has a pressure switch adjustment function, which can adjust the size of the pressure according to its actual needs, but it is not adjustable to too small or too large, too small switch easy to start and stop, and too large switches are very likely. To the role, causing the pump to close properly 10. Please confirm the power supply before use, and the power parameters need to be in line with the motor pump input parameters. 11. In order to prevent the product to go to the rotor, correctly install the method of pump head down or flat